I just did a buzz test and had a #7 injector open circuit high side open fault.
Truck does have a miss that seems to get slightly better when warm.
Obviously I'll test the OVH tomorrow while it's in the shop but wondering if I do need to replace an injector whats the cheapest most reliable solution to go with?

Truck is pretty much stock other then DIY intake, muffler delete and Superchip programmer.

This truck will not run properly if it's not plugged in, it's will start and run poorly until warm even on the hottest of days and this time of year it won't even run without being plugged in. I'm going to test the GP system as well tomorrow and I've read every thread there is to read about cold start issues here but know one ever seems to find an answer, the closest thread I've found to my issue is this one... another hard start, NOT THE GPS!

I suppose it could be compression but wouldn't it smoke and burn oil if that was the case.

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:

Password

Please enter a password for your user account. Note that passwords are case-sensitive.

Password:

Confirm Password:

Email Address

Please enter a valid email address for yourself.

Email Address:

Log-in

User Name

Remember Me?

Password

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.

AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.